Improved rock-drill



NITED STATES ATIENT @einen JULIUS C. DICKEY, OF SARATOGA SPRINGS, NEW YORK.

IMPROVED ROCK-DRILL.

Spceiiication forming part of Letters Patent No. 117,805, dated May 23, 1865.

To all whom it may concern:

Be it known that I, JULIUs O. DICKEY, of Saratoga Springs, in the county of Saratoga and State of New York, have invented a new and Improved Mode of Constructing Itock- Drills for Boring Artesian Wells; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists in making a rock-drill for boring artesian wells of a circular form with a circular cutting-edge, and also in combination with a guide to secure steadiness and effectiveness to the drill, the drill being made of steel or other known material.

Figure lis a perspective view, and Fig. 2 a longitudinal section through the same.

The drill A, I make with a circular cuttingedge and with a recess, C, as shown in Fig. 2. It is contemplated making this circular cuttin g-edge with sharp-pointed teeth, and making the hollow part C of the drill with pointed projections for the purpose oi' cutting and breaking up the quartz, &c. The projection B, Fig. 2, will be found suflieient for this purpose in'most cases. Itis contemplated making this projection B sufficiently long to ex,

tend to the bottom of the drill, and to make,

it pointed at the end or of a flat cutting-point.

It is also contemplated making holes throughn the sides of the drill into the hollow part thereof, and to make the side of the drill with a slot or slots, through which the pulverized rock can pass upward and thereby free the drill `from the accumulation ot'pulverized rock', the rock being cnt, broken up, and pulverized by the actionof the drill A, projection B, and the recess G. The guide D, I secure to the drill-rod at any desirable part of the rod. It

is contemplated using one or more of these guides D on the drill-rod. These guides D serve an important purpose in boring wells, as they secure an upright position to the drillrod, prevent the drill from becoming wedged in between the rock and the side of the well, and force the drill to cut and crush the rock without reference to the position of the rock in the bottom of the well.

There is great difiiculty in boring wells with the drills now in use when the rock does not lie entirely across the well, as the drill will glance off from the rock and become wedged in between the rock and the side of the well, the result of which is a great loss of time and tools, and in some cases a relinquishment of all effort to bore a well where one has been commenced. It is contemplated securing this guide Dto the drill-rod secured to any other drill, for the purpose of securing effectiveness to the drill. By the use of this drill A, in combination with the guide D, I am enabled to bore a well in any location, without lreference to the position or location of the rock. The guide D is perforated with holes, through which the pulverized rock can pass upward,

the drill-rod being secured to the drill, as Y shown at letter E.

It is manifest that the form and arrangement of theparts may be somewhat varied without a departure trom the spirit of my in# vention.

I claim- The drill A, with a circular cutting-edge, in combination with the recessC, for the purposes set forth.

JULIUS C. DIOKEY.

Witnesses:

SAM. ',l. BULL,

JAMES F. lt. HUDDER. 

